536 MUSEO NACIONAL DE BUENOS AIRES. 



Pages 



Prolicaphrium specillatum 4 14, 489 



Prolicaphrium spectabile 448, 444 



Promaucrauchenia 432, 433, 435 



Promacraclienia antiqua 432, 433 



Promacrauchenia ensenadensis 433 



Properipthychus argentinus 3!>3, 394 



Pi'opolymastodon 8 



Propyrotherium 159 



Propyrotherium saxeum 159 



Prosotherium 88 



Prosotherium (iarzoni 88 



Prostylops 159 



Prostylops ty pus 158 



Proteodidelphys '. 53, 54 



Proteodidelphys praecursor 53, 54 



Protei-othei-iuin.. 71, 80, 81, 93, 94, 98, lOfi, 111, W>, 132, 133, 298, 35G, 441, 442 

 119. 451, 455-457, 462, 4(57, 4(58, 473, 474, 479, 480, 482, 488. 490, 492 



Proterothprium cavum 71, 73, 97, 133, 451, 403, 4h'6 



ProtiTûthcrium eervioides 480, 481 



Protcrotlierium dichotoinum 152, 462 



ProterotliiiTium karaikeiise 299, 451-453, 456, 457 



Pruti'i'otherium mixtum HtS 



Proterotherium perpolitum 464, 465, 471 



Proterotherium politum KiS 



Proterotherium prosistens 1,33, 449, 454, 479 



Proterotherium pyramidatum 465, 466, 472 



Protheosodon 81, 9 1, 149, 153, 1(53, 192, 199, 421, 422, 43] , 435 



Protheosodon coniferus 81, 94, 149, lirl, 421 



Protohippus 137, 190, 194, 195. 225, 230-232, 26)3, 264, 277 



Pi-otohippus mirabilis 194. 224, 225, 230, 2G4 



Protohippus pachyops 264 



Prothylacynus patagonicus 21 



Prothoatherium 156, 445, 448, 460, 473, 479, 488-490 



Prothoatherium plicatum 44.5, 446 



Prothoiitherium scamnatum 156, 157, 44G, 447 



Proty potherium 88 



P.^eudhippus 493 



Pseudhyrax (i4, 143, 2.54, 255 



Pseudhj lax eutrachytheroides .51, 141. 2.'>4 



P.seudocoelosona 19,3, 42(i, 427, 435 



Pseudoooelosoma patagonica 193, 427 



Pseudohipparion 2li2, 21)3 



Pseudc hipparion retrusum 262 



Pseudohyaenodon 8, 9, 27 



Pseudohy aenodon Ger vaisi 26, 27 



Pseudostylops 283, 288 



Pseudostylops subquadratus 282 



Pterodoii 8, 9, 25 



Pt erodon dasy uroides 25, 26 



Pyralophodoii (>4, 345 



Pyraphodon pyriformis (i6, 345 



Pyrothcrium lU, 159, 183, 217, 298, 3U, 342, aJ5, 420, 421, 423, 436 



